Secure Collaborative Key Management for Dynamic Groups in Mobile Networks

Box 5

Group partition.

Assume that a current group is partitioned into two groups, () and (= ∖ ).

The master of is and the master of is ()

Step  1. generate = from .

(delegation) → :

Step  2. and select random , in respectively and compute key-locks with their locker list.

: 1, , ≠

: , ≠